#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2021/3/15 11:40
# @Author  : Wang Yuhang
# @File    : forms.py
# @Func    : 表单处理程序

from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField, TextAreaField, BooleanField, SelectField, ValidationError
from wtforms.validators import DataRequired, Length, Email, Regexp
from flask_pagedown.fields import PageDownField

from ..models import Role, User

import email_validator


class CommentForm(FlaskForm):
    body = PageDownField('', validators=[DataRequired()])
    submit = SubmitField('提交')


class PostForm(FlaskForm):
    body = PageDownField('写点什么吧？', validators=[DataRequired()])
    submit = SubmitField('提交')


class NameForm(FlaskForm):
    name = StringField('请输入你的名字：', validators=[DataRequired()])
    submit = SubmitField('提交')


class EditProfileForm(FlaskForm):
    name = StringField('真实姓名', validators=[Length(0, 64)])
    location = StringField('地址', validators=[Length(0, 64)])
    about_me = TextAreaField('自我介绍')
    submit = SubmitField('提交')


class EditProfileAdminForm(FlaskForm):
    email = StringField('邮箱', validators=[DataRequired(), Length(1, 64), Email()])
    username = StringField("用户名", validators=[DataRequired(), Length(1, 64), Regexp('^[A-Za-z][A-Za-z0-9_,]*$', 0,
                                                '用户名只能包含字母、数字、下划线和点号')])
    confirmed = BooleanField("已验证")
    role = SelectField('角色', coerce=int)                             # 下拉列表
    name = StringField("真实姓名", validators=[Length(0, 64)])
    location = StringField("地址", validators=[Length(0, 64)])
    about_me = TextAreaField("个人介绍")
    submit = SubmitField("提交")

    def __init__(self, user, *args, **kwargs):
        super(EditProfileAdminForm, self).__init__(*args, **kwargs)
        self.role.choices = [(role.id, role.name) for role in Role.query.order_by(Role.name).all()]
        self.user = user

    def validate_email(self, field):
        if field.data != self.user.email and User.query.filter_by(email=field.data).first():
            raise ValidationError("邮箱已存在！")

    def validate_username(self, field):
        if field.data != self.user.username and User.query.filter_by(username=field.data).first():
            raise ValidationError("用户名已存在！")



